One vertex per element, one color per generator, with an edge from x to x·s.
(9,10,14,15)(11,13,12,16)(17,18,22,21)(19,23,27,26)(20,28,30,24)(25,32,29,31)(1,2)(3,4)(5,6)(7,8)(10,15)(11,12)(17,18,22,21)(19,23,27,26)(20,28,30,24)(25,32,29,31)(2,6)(4,7)(9,11,14,12)(10,16,15,13)(18,21)(23,26)(24,28)(31,32)(2,6)(3,8)(9,12,14,11)(10,13,15,16)(17,19,22,27)(18,23,21,26)(20,29,30,25)(24,32,28,31)(1,3)(2,7)(4,6)(5,8)(9,13)(10,11)(12,15)(14,16)(17,20,22,30)(18,24,21,28)(19,25,27,29)(23,31,26,32)(1,4,5,7)(2,3,6,8)(17,21,22,18)(19,26,27,23)(20,28,30,24)(25,32,29,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.